A lead screw deburring device

Abstract

The application discloses a lead screw deburring device and relates to the technical field of lead screw deburring devices.The device comprises a rack, a lead screw, a limiting arc, a detection mechanism and a polishing mechanism.The detection mechanism comprises a detection rod, and the polishing mechanism comprises a polishing wheel and a linear actuator.The limiting arc is in spiral cooperation with the external thread of the lead screw, so that the forward movement speed of the lead screw can be adapted to the rotation speed, and the posture of the lead screw during the machining process is stable, so that the detection rod is abutted against the tooth root or the tooth top of the lead screw, the detection rod is displaced and signals are sent when burrs pass, and the polishing mechanism is forwardly moved to polish according to the signals, so that selective polishing of the burrs of the thread of the lead screw is realized, and unnecessary damage to the tooth profile without burrs is avoided.

Description

Technical Field

[0001] This invention relates to the technical field of deburring devices for lead screws, and in particular to a deburring device for lead screws. Background Technology

[0002] Existing deburring methods for lead screws mainly include manual grinding and mechanical overall grinding. Manual grinding is inefficient, labor-intensive, and the grinding quality is affected by the worker's skill level, resulting in poor consistency. Mechanical overall grinding usually uses a nylon wheel to grind the lead screw from all directions, but it cannot distinguish between burr-containing and burr-free areas, and it is less effective at removing larger burrs. It can also easily damage the burr-free thread profile, reducing the accuracy of the lead screw. Summary of the Invention

[0003] Therefore, it is necessary to provide a deburring device for lead screws to address the technical problems of low efficiency in removing large burrs and easy damage to the tooth profile surface.

[0004] To achieve the above objectives, the present invention provides a lead screw deburring device, comprising: Frame and lead screw; A linear actuator is mounted on the frame, and an abutment frame is mounted on the output end of the linear actuator. The abutment frame is slidably engaged with the frame. A limiting arc is mounted on the abutment frame, and an internal thread adapted to the external thread of the lead screw is provided on the limiting arc to clamp and limit the lead screw from above, so that the forward movement speed and rotation speed of the lead screw can be matched. The detection mechanism, located downstream of the limiting arc, includes a detection rod that can be displaced and mounted on the frame. The detection rod can abut against the root or crest of the lead screw. When a burr passes by, it can squeeze the detection rod to cause displacement and send a signal. The grinding mechanism includes a grinding wheel and a second linear actuator that drives the grinding wheel to move forward. The second linear actuator is mounted on the frame. The grinding wheel can move forward according to the signal sent by the detection rod to grind the burrs on the lead screw.

[0005] The frame serves as the main support structure of the device and can be constructed by welding or bolting steel sections. The linear actuator is fixedly mounted on the frame, with its output end connected to the abutment frame, driving the abutment frame to rise and fall along the frame. The abutment frame slides and engages with the guide rails of the frame, allowing for smooth vertical movement. A limiting arc is mounted on the abutment frame, its internal thread matching the external thread of the lead screw. When the abutment frame descends, the limiting arc presses down and engages with the external thread of the lead screw, clamping and limiting the lead screw from above. The internal thread of the limiting arc and the external thread of the lead screw form a helical engagement. When the lead screw is driven forward axially under the clamping of the limiting arc, the helical engagement ensures a definite speed correspondence between the axial movement and rotational motion of the lead screw. This means the forward movement speed and rotational speed of the lead screw are matched, ensuring the stability of the lead screw's posture during processing and preventing axial movement or radial runout caused by simple clamping. The detection mechanism is located downstream of the limiting arc and includes a detection rod that can be displaced and mounted on the frame. The detection rod can abut against the root or crest of the lead screw. When the lead screw rotates forward, the burrs on the root or crest of the lead screw will squeeze the detection rod and cause it to displace. The displacement of the detection rod is detected by the displacement sensor and sends a signal. The controller starts the grinding mechanism according to the signal. After the detection rod is squeezed and displaced, it can be reset under the action of the spring. The grinding mechanism includes a grinding wheel and a second linear actuator that drives the grinding wheel forward. The grinding wheel is driven forward by the second linear actuator according to the signal emitted by the detection rod to grind the burrs on the lead screw. After grinding, the grinding wheel returns to its original position and waits for the next signal, thus realizing accurate detection and selective grinding of burrs on the lead screw thread, avoiding unnecessary damage to the tooth profile surface without large burrs. Both the linear actuator and the second linear actuator can be electric cylinders. The displacement sensor should be selected with high accuracy. The lead screw can first have small burrs removed on an existing nylon wheel deburring machine to avoid small burrs affecting the detection rod's detection.

[0006] Optionally, the frame is further provided with multiple abutment frames, which are arranged at intervals along the axial direction of the lead screw. The limiting arcs on each abutment frame alternately clamp and release the lead screw. A balance plate is installed at the output end of the linear actuator, and a force sensor is installed between the balance plate and the abutment frame to detect the force on the limiting arc.

[0007] By adopting the above technical solution, multiple abutment brackets are arranged at intervals along the axial direction of the lead screw. During operation, since the limiting arc is a semi-circular structure and its internal thread is in contact with the external thread of the lead screw, the fixed burr will squeeze the limiting arc when it passes by. After the force sensor detects the pressure, the controller can move the linear actuator up a small distance to slightly loosen the limiting arc, so as to prevent the burr from being forcibly squeezed and deformed and jammed. The limiting arc of the subsequent abutment bracket will still hold the lead screw, thus ensuring that the lead screw will not completely lose its limit at any time. When a larger burr passes through the subsequent limiting arc, the limiting arc can rise in sequence. A balance plate is installed at the output end of the linear actuator. The balance plate is horizontally connected to the output end of the linear actuator and the abutment frame, so that the driving force of the linear actuator is evenly transmitted to each abutment frame. A force sensor is installed between the balance plate and the abutment frame to detect the clamping force of the limit arc on the lead screw in real time. The detection reading is stabilized by the uniform compression between the balance plate and the abutment frame. When the abutment frame drives the limit arc to initially clamp a lead screw, the descent height of the linear actuator and the force reading of the force sensor can be used to better determine whether the clamping is in place.

[0008] Optionally, the bottom of the limiting arc is provided with a slot, which is adapted to the extension direction of the lead screw external thread, so that the burrs on the tip of the lead screw will not come into contact with the side of the limiting arc when they pass through.

[0009] By adopting the above technical solution, the root of the limiting arc has a continuous groove along the helical direction. The width of the groove is slightly larger than the height of the burr on the tip of the lead screw, and the depth of the groove is sufficient to accommodate the burr. Because there is a gap between the external thread of the lead screw and the internal thread of the limiting arc, and because the root of the limiting arc has a groove, when a burr on the tip of the lead screw passes through the limiting arc, the burr enters the groove and does not collide with the side of the limiting arc, thus avoiding damage to the limiting arc from the burr and ensuring smooth advance of the lead screw.

[0010] Optionally, a fixing ring is also provided on the frame along the axial direction of the lead screw. The fixing ring is installed on the abutment frame. The fixing ring has the same structure as the limiting arc, but the root of the fixing ring has no empty groove and its internal thread is fully engaged with the external thread of the lead screw. The fixing ring is located on the rear side of the grinding station, and the limiting arc is located on the front side of the grinding station. When the lead screw moves forward, the limiting arc on the front side presses down to clamp it. When it enters the grinding station, the fixing ring on the rear side presses down to clamp it, and the limiting arc on the front side rises to release it.

[0011] By adopting the above technical solution, the fixed ring and the limiting arc have the same structure, but the fixed ring is located on the rear side of the grinding station, while the limiting arc is located on the front side. Therefore, the root of the fixed ring does not need to have a slot, and its internal thread fully meshes with the external thread of the lead screw. When the lead screw advances, the front limiting arc first presses down to clamp the lead screw. After the lead screw continues to advance and grind, the rear fixed ring can press down to clamp the lead screw, and the front limiting arc rises to release the lead screw. This means that the linear actuator and force sensor driving the limiting arc do not need to work continuously. The linear actuator and the limiting arc only work briefly during the initial grinding of the lead screw, and then enter an intermittent state. Subsequently, the fixed ring continuously limits the movement from the rear side of the grinding station, ensuring that the lead screw can still move forward stably.

[0012] Optionally, both the limiting arc and the fixing ring are semi-circular structures, covering only the upper half of the lead screw. The limiting arc is rotatably mounted on the lower end of the abutment frame. A long roller is provided below the lead screw to support it, and the long roller is rotatably mounted on the frame.

[0013] By adopting the above technical solution, both the limiting arc and the fixing ring are semi-circular, covering only the upper half of the lead screw, which facilitates the clamping and limiting of the lead screw. The limiting arc is rotatably installed at the lower end of the abutment frame via a pin or hinge. A long roller is provided below the lead screw. The long roller, which is rotatably installed on the frame, supports the weight of the lead screw from below and cooperates with the limiting arc or fixing ring above to ensure stable support of the lead screw during the processing.

[0014] Optionally, the detection mechanism includes a detection rod one corresponding to the root of the lead screw and a detection rod two corresponding to the tip of the lead screw.

[0015] By adopting the above technical solution, detection rod one corresponds to the root of the lead screw, and detection rod two corresponds to the crest of the lead screw, respectively detecting burrs at the root and crest. Both detection rod one and detection rod two are mounted on the frame or limit arc via a spring return mechanism, maintaining a slight gap or light contact with the root or crest of the lead screw under normal conditions. When the lead screw rotates forward, burrs on the root or crest of the lead screw pass through detection rod one or detection rod two, causing them to be displaced. The displacement sensor detects this displacement and sends a signal, which the controller uses to activate the corresponding grinding mechanism. After the burr passes, the detection rod returns to its original position under the action of the spring. The selection, maintenance, and replacement of the springs are existing technologies and will not be elaborated upon.

[0016] Optionally, the grinding mechanism includes a grinding wheel one corresponding to the bottom of the lead screw and a grinding wheel two corresponding to the top of the lead screw, and the grinding wheel one and the grinding wheel two are driven forward by independent linear actuators two respectively.

[0017] By adopting the above technical solution, grinding wheel one corresponds to the root of the lead screw, and grinding wheel two corresponds to the crest of the lead screw, respectively grinding the burrs at the root and crest. When the first detection rod sends a signal, the controller drives the linear actuator two corresponding to grinding wheel one to move forward, bringing grinding wheel one closer to the root of the lead screw for grinding; when the second detection rod sends a signal, the controller drives the linear actuator two corresponding to grinding wheel two to move forward, bringing grinding wheel two closer to the crest of the lead screw for grinding. After grinding is completed, the corresponding grinding wheels return to their original positions. In this way, the grinding actions at the root and crest of the lead screw are independent of each other and can be started separately according to the burr condition of each, achieving more precise selective grinding. This achieves selective grinding of burrs at the root and crest of the lead screw, avoiding unnecessary grinding of burr-free areas and protecting the tooth profile surface; the linear actuator two can be an electric cylinder.

[0018] Optionally, the shape of the detection rod and the grinding wheel are both adapted to the tooth profile of the lead screw thread.

[0019] By adopting the above technical solution, the tip shape of the detection rod is adapted to the shape of the lead screw's tooth root or tooth crest, enabling it to accurately follow the contour of the tooth root or tooth crest, preventing false detection or damage to the tooth profile due to shape mismatch. The outer surface shape of the grinding wheel is also adapted to the tooth profile of the lead screw thread, allowing it to precisely conform to the tooth root or tooth crest surface during grinding, effectively removing burrs without damaging the working surface of the thread.

[0020] This technical solution has at least the following beneficial effects: 1. By forming a helical fit between the limiting arc and the external thread of the lead screw, the forward movement speed and rotation speed of the lead screw can be matched, ensuring the stability of the lead screw's posture during processing. Then, the detection rod abuts against the root or crest of the lead screw's thread. When a burr passes by, it squeezes the detection rod to generate displacement and sends a signal. The grinding mechanism moves forward to grind according to the signal, realizing selective grinding of burrs on the lead screw thread and avoiding unnecessary damage to the burr-free tooth profile. Attached Figure Description

[0021] Figure 1 This is a top sectional view of an embodiment of the present invention; Figure 2 This is a perspective view of an embodiment of the present invention; Figure 3 This is a bottom sectional view of the limiting arc according to an embodiment of the present invention; Figure 4 This is an embodiment of the present invention. Figure 1 Enlarged view of a portion of point A in the middle; In the diagram, 1. Frame; 2. Linear actuator; 3. Abutment frame; 4. Limit arc; 41. Empty slot; 5. Detection rod; 51. Detection rod one; 52. Detection rod two; 6. Grinding wheel; 61. Grinding wheel one; 62. Grinding wheel two; 7. Linear actuator two; 8. Balance plate; 9. Force sensor; 10. Fixing ring; 11. Long roller; 100. Lead screw. Detailed Implementation

[0022] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] Please see Figures 1 to 4 This application provides a lead screw deburring device, comprising: Frame 1 and lead screw 100; A linear actuator 2 is mounted on the frame 1. An abutment frame 3 is mounted on the output end of the linear actuator 2. The abutment frame 3 is slidably engaged with the frame 1. A limiting arc 4 is mounted on the abutment frame 3. The limiting arc 4 is provided with an internal thread that is compatible with the external thread of the lead screw 100. It is used to clamp and limit the lead screw 100 from above so that the forward movement speed and rotation speed of the lead screw 100 can be matched. The detection mechanism, located downstream of the limiting arc 4, includes a detection rod 5 that can be displaced and mounted on the frame 1. The detection rod 5 can abut against the root or crest of the lead screw 100. When a burr passes by, it can squeeze the detection rod 5 to cause it to displace and send a signal. The grinding mechanism includes a grinding wheel 6 and a linear actuator 7 that drives the grinding wheel 6 to move forward. The linear actuator 7 is mounted on the frame 1. The grinding wheel 6 can move forward according to the signal sent by the detection rod 5 to grind the burrs on the lead screw 100.

[0024] The frame 1 is the main support structure of the device, which can be made by welding or bolting steel. The linear actuator 2 is fixedly mounted on the frame 1, and its output end is connected to the abutment frame 3, driving the abutment frame 3 to rise and fall along the frame 1. The abutment frame 3 is slidably engaged on the guide rail of the frame 1, and can move smoothly in the vertical direction. The limiting arc 4 is mounted on the abutment frame 3, and its internal thread is adapted to the external thread of the lead screw 100. When the abutment frame 3 descends, the limiting arc 4 presses down and engages with the external thread of the lead screw 100, thereby clamping and limiting the lead screw 100 from above. The internal thread of the limiting arc 4 and the external thread of the lead screw 100 form a helical engagement relationship. When the lead screw 100 is driven forward axially under the clamping of the limiting arc 4, the helical engagement relationship makes a definite speed correspondence between the axial movement and rotational movement of the lead screw 100, that is, the forward movement speed and rotational speed of the lead screw 100 can be matched, thereby ensuring the stability of the lead screw 100's posture during the processing and avoiding axial movement or radial runout of the lead screw 100 due to simple clamping. The detection mechanism is set along the axial direction of the lead screw (100) and downstream of the limiting arc (4). It includes a detection rod 5 that is displaceably mounted on the frame 1. The detection rod 5 can abut against the root or crest of the lead screw 100. When the lead screw 100 rotates forward, the burrs on the root or crest of the lead screw pass through the detection rod 5 and squeeze the detection rod 5 to cause it to displace. The displacement of the detection rod 5 is detected by the displacement sensor and a signal is sent. The controller starts the grinding mechanism according to the signal. After the detection rod 5 is squeezed and displaced, it can be reset under the action of the spring. The grinding mechanism includes a grinding wheel 6 and a linear actuator 7 that drives the grinding wheel 6 forward. The grinding wheel 6 is driven forward by the linear actuator 7 according to the signal emitted by the detection rod 5 to grind the burrs on the lead screw 100. After grinding, the grinding wheel 6 returns to its original position and waits for the next signal, thus realizing accurate detection and selective grinding of the thread burrs on the lead screw 100, avoiding unnecessary damage to the tooth profile surface without large burrs. Both the linear actuator 2 and the linear actuator 7 can be electric cylinders. The displacement sensor should be selected with high accuracy. The lead screw 100 can first remove small burrs on the existing nylon wheel deburring machine to avoid small burrs affecting the detection of the detection rod 5. For positions where the limiting arc 4 is not set, a rotating abutment wheel can be set on its top to limit and abut the top of the lead screw 100 to ensure that its axis is always on a straight line.

[0025] In one embodiment, the frame 1 is further provided with a plurality of abutment frames 3, which are arranged at intervals along the axial direction of the lead screw 100. The limiting arcs 4 on each abutment frame 3 alternately clamp and release the lead screw 100. A balance plate 8 is installed at the output end of the linear actuator 2, and a force sensor 9 is installed between the balance plate 8 and the abutment frame 3 to detect the force on the limiting arc 4.

[0026] By adopting the above technical solution, multiple abutment frames 3 are arranged at intervals along the axial direction of the lead screw 100. During operation, since the limiting arc 4 is a semi-circular structure and its internal thread is in contact with the external thread of the lead screw 100, the fixed burr will squeeze the limiting arc 4 when it passes by. After the force sensor 9 detects the pressure, the controller can move the linear actuator 2 up a small distance to slightly loosen the limiting arc 4, so as to prevent the burr from being forcibly squeezed and deformed and jammed. The limiting arc 4 of the subsequent abutment frame 3 will still hold the lead screw 100, thereby ensuring that the lead screw 100 will not completely lose its limit at any time. When a larger burr passes through the subsequent limiting arc 4, the limiting arc 4 can rise in sequence. A balance plate 8 is installed at the output end of the linear actuator 2. The balance plate 8 is horizontally connected to the output end of the linear actuator 2 and the abutment frame 3, so that the driving force of the linear actuator 2 is evenly transmitted to each abutment frame 3. A force sensor 9 is installed between the balance plate 8 and the abutment frame 3 to detect the clamping force of the limiting arc 4 on the lead screw 100 in real time. The detection reading is stabilized by the uniform compression between the balance plate 8 and the abutment frame 3. When the abutment frame 3 drives the limiting arc 4 to initially clamp a lead screw 100, the descent height of the linear actuator 2 and the force reading of the force sensor 9 can be used to better determine whether the clamping is in place.

[0027] In one embodiment, the bottom of the limiting arc 4 is provided with a slot 41, which is adapted to the extension direction of the external thread of the lead screw 100, so that the burrs on the top of the lead screw 100 will not come into contact with the side of the limiting arc 4 when they pass through.

[0028] By adopting the above technical solution, the bottom of the limiting arc 4 is provided with a continuous groove 41 along the helical direction. The width of the groove 41 is slightly larger than the height of the burr on the tip of the lead screw 100, and the depth of the groove 41 is sufficient to accommodate the burr. Since there is a gap between the external thread of the lead screw 100 and the internal thread of the limiting arc 4, and the bottom of the limiting arc 4 is provided with a groove 41, when the burr on the tip of the lead screw 100 passes through the limiting arc 4, the burr enters the groove 41 and will not collide with the side of the limiting arc 4, thus avoiding damage to the limiting arc 4 by the burr and ensuring the smooth advance of the lead screw 100.

[0029] In one embodiment, a fixing ring 10 is also provided on the frame 1 along the axial direction of the lead screw 100. The fixing ring 10 is fixedly installed on the abutment frame 3. The fixing ring 10 has the same structure as the limiting arc 4, but the tooth root of the fixing ring 10 has no empty groove and its internal thread is fully engaged with the external thread of the lead screw 100. The fixing ring 10 is located on the rear side of the grinding station, and the limiting arc 4 is located on the front side of the grinding station. When the lead screw 100 moves forward, the limiting arc 4 on the front side presses down to clamp it. When it enters the grinding station, the fixing ring 10 on the rear side presses down to clamp it, and the limiting arc 4 on the front side rises and releases.

[0030] By adopting the above technical solution, the fixed ring 10 and the limiting arc 4 have the same structure, but the fixed ring 10 is located on the rear side of the grinding station, and the limiting arc 4 is located on the front side of the grinding station. Therefore, the root of the fixed ring 10 does not need to have a slot, and its internal thread is fully engaged with the external thread of the lead screw 100. When the lead screw 100 moves forward, the front limiting arc 4 first presses down to clamp the lead screw 100. After the lead screw 100 continues to move forward for grinding, the rear fixed ring 10 can press down to clamp the lead screw 100, and the front limiting arc 4 rises to release the lead screw 100. This means that the linear actuator 2 and the force sensor 9 that drive the limiting arc 4 do not need to work continuously. The linear actuator 2 and the limiting arc 4 only work briefly during the initial grinding of the lead screw 100, and then enter an intermittent state. Subsequently, the fixed ring 10 continuously limits the movement from the rear side of the grinding station, ensuring that the lead screw 100 can still move forward stably.

[0031] In one embodiment, both the limiting arc 4 and the fixing ring 10 are semi-ring structures, covering only the upper half of the lead screw 100. The limiting arc 4 is rotatably mounted on the lower end of the abutment frame 3. A long roller 11 is provided below the lead screw 100 to support the lead screw 100. The long roller 11 is rotatably mounted on the frame 1.

[0032] By adopting the above technical solution, both the limiting arc 4 and the fixing ring 10 are semi-circular, covering only the upper half of the lead screw 100, which facilitates the clamping and limiting of the lead screw 100. The limiting arc 4 is rotatably installed at the lower end of the abutment frame 3 via a pin or hinge. A long roller 11 is provided below the lead screw 100. The long roller 11, which is rotatably installed on the frame 1, supports the weight of the lead screw 100 from below and drives the lead screw 100 to rotate stably through rotation. It cooperates with the limiting arc 4 or the fixing ring 10 above to ensure the stable support of the lead screw 100 during the processing.

[0033] In one embodiment, the detection mechanism includes a detection rod 51 corresponding to the bottom of the lead screw 100 and a detection rod 52 corresponding to the top of the lead screw 100.

[0034] By adopting the above technical solution, detection rod 51 corresponds to the root of the lead screw 100, and detection rod 52 corresponds to the crest of the lead screw 100, respectively detecting burrs at the root and crest. Both detection rod 51 and detection rod 52 are mounted on the frame 1 or the limiting arc 4 via a spring reset mechanism, maintaining a slight gap or light contact with the root or crest of the lead screw 100 under normal conditions. When the lead screw 100 rotates forward, burrs on the root or crest of the lead screw pass through detection rod 51 or detection rod 52, causing them to be displaced. The displacement sensor detects this displacement and sends a signal, which the controller uses to activate the corresponding grinding mechanism. After the burr passes, the detection rod resets under the action of the spring. The selection, maintenance, and replacement of the springs are existing technologies and will not be elaborated upon.

[0035] In one embodiment, the grinding mechanism includes a first grinding wheel 61 corresponding to the bottom of the lead screw 100 and a second grinding wheel 62 corresponding to the top of the lead screw 100. The first grinding wheel 61 and the second grinding wheel 62 are driven forward by independent linear actuators 7.

[0036] By adopting the above technical solution, grinding wheel 61 corresponds to the root of the lead screw 100, and grinding wheel 62 corresponds to the crest of the lead screw 100, respectively grinding the burrs on the root and crest. When a signal is emitted from detection rod 51, the controller drives the linear actuator 7 corresponding to grinding wheel 61 to move forward, bringing grinding wheel 61 closer to the root for grinding; when a signal is emitted from detection rod 52, the controller drives the linear actuator 7 corresponding to grinding wheel 62 to move forward, bringing grinding wheel 62 closer to the crest for grinding. After grinding is completed, the corresponding grinding wheels return to their original positions. In this way, the grinding actions of the root and crest are independent of each other and can be started separately according to their respective burr conditions, achieving more precise selective grinding, selectively grinding burrs on the root and crest, avoiding unnecessary grinding of burr-free areas, and protecting the tooth profile; the linear actuator 7 can be an electric cylinder.

[0037] In one embodiment, the shapes of the detection rod 5 and the grinding wheel 6 are both adapted to the tooth profile of the lead screw 100 thread.

[0038] By adopting the above technical solution, the tip shape of the detection rod 5 is adapted to the shape of the thread root or crest of the lead screw 100, and can accurately follow the contour of the thread root or crest, without causing false detection or damage to the thread profile due to shape mismatch. The outer surface shape of the grinding wheel 6 is also adapted to the thread profile of the lead screw 100, and can accurately fit the surface of the thread root or crest during grinding, effectively removing burrs without damaging the working surface of the thread.

Claims

1. A deburring device for lead screws, characterized in that, include: Frame (1) and lead screw (100); A linear actuator (2) is installed on the frame (1). An abutment frame (3) is installed at the output end of the linear actuator (2). The abutment frame (3) is slidably engaged with the frame (1). A limiting arc (4) is installed on the abutment frame (3). An internal thread adapted to the external thread of the lead screw (100) is provided on the limiting arc (4) to clamp and limit the lead screw (100) from above, so that the forward movement speed and rotation speed of the lead screw (100) can be matched. The detection mechanism, located downstream of the limiting arc (4), includes a detection rod (5) that can be displaced and mounted on the frame (1). The detection rod (5) can abut against the root or crest of the lead screw (100). When a burr passes by, it can squeeze the detection rod (5) to cause it to displace and send a signal. The grinding mechanism includes a grinding wheel (6) and a linear actuator (7) that drives the grinding wheel (6) to move forward. The linear actuator (7) is mounted on the frame (1). The grinding wheel (6) can move forward according to the signal emitted by the detection rod (5) to grind the burrs on the lead screw (100).

2. The deburring device for lead screws according to claim 1, characterized in that, The frame (1) is also provided with multiple abutment frames (3), which are arranged at intervals along the axial direction of the lead screw (100). The limiting arcs (4) on each abutment frame (3) alternately clamp and release the lead screw (100). A balance plate (8) is installed at the output end of the linear actuator (2), and a force sensor (9) is installed between the balance plate (8) and the abutment frame (3) to detect the force on the limiting arc (4).

3. The deburring device for lead screws according to claim 1, characterized in that, The bottom of the limiting arc (4) is provided with a slot (41), which is adapted to the extension direction of the external thread of the lead screw (100), so that the burrs on the top of the lead screw (100) will not collide with the side of the limiting arc (4) when they pass through.

4. The deburring device for lead screws according to claim 3, characterized in that, The frame (1) is also provided with a fixing ring (10) along the axial direction of the lead screw (100). The fixing ring (10) is installed on the abutment frame (3). The fixing ring (10) has the same structure as the limiting arc (4), but the tooth root of the fixing ring (10) has no empty groove and its internal thread is fully engaged with the external thread of the lead screw (100). The fixing ring (10) is set on the rear side of the grinding station, and the limiting arc (4) is set on the front side of the grinding station. When the lead screw (100) moves forward, the limiting arc (4) on the front side presses down to clamp it. When it enters the grinding station, the fixing ring (10) on the rear side presses down to clamp it, and the limiting arc (4) on the front side rises and loosens.

5. The deburring device for lead screws according to claim 4, characterized in that, The limiting arc (4) and the fixing ring (10) are both semi-ring structures, covering only the upper half of the lead screw (100). The limiting arc (4) is rotatably installed at the lower end of the abutment frame (3). A long roller (11) is provided below the lead screw (100) to support the lead screw (100). The long roller (11) is rotatably installed on the frame (1).

6. The deburring device for lead screws according to claim 1, characterized in that, The detection mechanism includes a detection rod one (51) corresponding to the bottom of the lead screw (100) and a detection rod two (52) corresponding to the top of the lead screw (100).

7. The deburring device for lead screws according to claim 6, characterized in that, The grinding mechanism includes a grinding wheel 1 (61) corresponding to the bottom of the lead screw (100) and a grinding wheel 2 (62) corresponding to the top of the lead screw (100). The grinding wheel 1 (61) and the grinding wheel 2 (62) are driven forward by independent linear actuators 2 (7).

8. The deburring device for lead screws according to claim 1, characterized in that, The shape of the detection rod (5) and the grinding wheel (6) are both adapted to the tooth profile of the lead screw (100).

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